Hobbes, Gentle Predator

Partner with Calvin, Delinquent Genius.
Whenever a permanent or player is delt
noncombat damage, put a +1/+1 counter on
Hobbes, Gentle Predator.
Whenever a creature enters the battlefield under
an opponent's control, you may have Hobbes,
Gental Predator fight that creature. This ability
only triggers once each turn.